New Orleans / Marrero
Marrero has 32,540 residents (give or take 1,988) (ACS 2020-2024 5-year, table B01003, https://data.census.gov/table/ACSDT5Y2024.B01003?g=160XX00US2248785, checked 2026-10-19), about 4,519 people per square mile.
Marrero is about 16 miles from the Census center point for New Orleans in a straight line and covers 7.2 square miles of land (Census 2024 Gazetteer internal points and land area, https://www2.census.gov/geo/docs/maps-data/data/gazetteer/2024_Gazetteer/, checked 2026-10-19).
4,519 people per square mile puts Marrero in suburban density, where the outdoor unit usually sits in a side yard and the noise is not an issue for neighbors.
Of the 12,668 occupied homes in Marrero, 40% heat with natural gas, 0% with heating oil, 58% with electricity and 1% with propane (ACS 2020-2024 5-year, table B25040, https://data.census.gov/table/ACSDT5Y2024.B25040?g=160XX00US2248785, checked 2026-10-19).
Electricity already heats 58% of Marrero homes, ahead of gas at 40%, and a home on electric baseboard sees the biggest bill change from a heat pump because it replaces resistance heat one for one.
Marrero has about the Jefferson Parish oil share of 0% and 2 points more electric heat than the county's 56% (ACS 2020-2024 5-year, table B25040, https://data.census.gov/table/ACSDT5Y2024.B25040?g=050XX00US22051, checked 2026-10-19).
Marrero has 13,920 housing units, 5% built before 1940 and 69% before 1980, with 11% built in 2000 or later (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=160XX00US2248785, checked 2026-10-19).
Marrero has 3 points fewer homes built after 2000 than the county's 14% (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=050XX00US22051, checked 2026-10-19).
The median Marrero home was built in 1972 (ACS 2020-2024 5-year, table B25035, https://data.census.gov/table/ACSDT5Y2024.B25035?g=160XX00US2248785, checked 2026-10-19) and the median home has 5.7 rooms (ACS 2020-2024 5-year, table B25018, https://data.census.gov/table/ACSDT5Y2024.B25018?g=160XX00US2248785, checked 2026-10-19).
77% of Marrero homes are single-family detached, 8% are in two- to four-unit buildings and 8% are in buildings of five or more units (ACS 2020-2024 5-year, table B25024, https://data.census.gov/table/ACSDT5Y2024.B25024?g=160XX00US2248785, checked 2026-10-19).
With 77% detached houses and 8% in small multi-family buildings, a Marrero quote is usually one or two outdoor units with ducted or ductless heads sized room by room. With 34% of Marrero homes rented (ACS 2020-2024 5-year, table B25003, https://data.census.gov/table/ACSDT5Y2024.B25003?g=160XX00US2248785, checked 2026-10-19), the landlord signs the quote in many of them.
Marrero has 12 points more detached houses than Jefferson Parish overall (65%) and 11 points fewer five-plus-unit buildings than the county's 19% (ACS 2020-2024 5-year, table B25024, https://data.census.gov/table/ACSDT5Y2024.B25024?g=050XX00US22051, checked 2026-10-19).
69% of Marrero homes were built before 1980 and only 11% in 2000 or later (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=160XX00US2248785, checked 2026-10-19), so most of the stock predates modern insulation codes; the installer's heat-loss calculation, not a square-footage rule, decides the tonnage.
No electric utility is on file for Marrero on this door yet, so this page does not name one; the name on the bill decides which rebate path applies.
Median household income in Marrero is $41,402 (ACS 2020-2024 5-year, table B19013, https://data.census.gov/table/ACSDT5Y2024.B19013?g=160XX00US2248785, checked 2026-10-19); many state and utility heat pump rebate programs set higher incentive tiers for income-qualifying households, so the household income on the application, not the town median, decides which level applies.
Heating design temperature: 34F. Source: ENERGY STAR Design Temperature Limit Reference Guide (2019 Edition), Jefferson Parish row, 99% heating, PDF pages 51 to 54 of 141 (Revised 11/11/2020), https://www.energystar.gov/sites/default/files/Design%20Temperature%20Limit%20Reference%20Guide%20(2019%20Ed)%20-%20ENERGY%20STAR%20Single-Family%20New%20Homes_Rev11.pdf, fetched 2026-10-19, 99%.
That 34F figure is the Jefferson Parish cold-day number a Marrero heat pump is sized against, so ask the installer to show the system's heating output at 34F, not at the milder rating-label temperature.
Ask for the heat-loss calculation room by room; the median Marrero home has 5.7 rooms and was built around 1972, and the count of heads and the tonnage follow the rooms and the insulation, not the square footage.
The form on this page is the follow-up for Marrero. The public number is the number the contractor quotes from.
No local contractor is named on this door for Marrero yet. A request from this page goes to the first licensed shop that takes the door.